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it's the only one with a negative gradient.
so the temperature of the ball will fall in water as it looses its heat.
activate windows,:-P
Related Questions
What is the mass of an object that weighs 55N on earth?
Answers
Force = Mass x Acc.
55N=mass x 9.8
so mass =55/9.8=5.61 aprox.
Now on the planet gravity mass is doubled
F =M x 2a
F =5.61x2x9.2
F=110N=110kg weight
With Earth's gravity being [tex]9.80 m/s^2[/tex] the mass is approximately 5.61 kg.
To calculate the mass of an object that weighs 55N on Earth, we need to use the formula for weight, which is w = mg, where w is weight, m is mass, and g is the acceleration due to gravity.
On Earth, g is typically [tex]9.80 m/s^2[/tex]
Therefore, we can find the mass of an object by dividing its weight by this acceleration due to gravity.
To calculate the mass (m) of an object that weighs 55N on Earth:
m = w / g
[tex]m = 55 N / 9.80 m/s^2[/tex]
This calculation results in a mass of approximately 5.61 kg.
what is one joule work
Answers
Light from a distant star has undergone a red shift. Which of these conclusions is correct about the star? Its pitch is increasing. Its parallax is increasing. It is moving towards Earth. It is moving away from Earth.
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appear to get longer after they leave the source, except for
the Doppler effect ... when the observer and the source of
the light are moving apart.
Since we don't know any other way for it to happen, whenever
we see a star or a galaxy whose light is red-shifted, we conclude
that it is moving away from Earth.
If you think about this for a few seconds, there are two things
about it that should blow your mind:
#1). "Red-shifted" means that the wavelengths of the light we see
are longer than the wavelengths of the light that left the star.
How do we know what the wavelength was when it left the star ?
#2). Our whole picture of the "expanding universe" ... which is a
big part of the foundation that supports the whole picture of the
"big bang" ... rests on the red-shift of light from distant galaxies,
and our conclusion that they are all moving away from us.
If we ever discover a DIFFERENT way that light can become
red-shifted, that may be IT for the expanding universe and the
big bang, both. They may both be out the window.
Answer:
It is moving away from Earth.
Explanation:
As the source comes closer to the observer then we can say that its frequency will increase.
So here we know that
[tex]\frac{\Delta \nu}{\nu} = \frac{v}{c}[/tex]
here we know that
v = speed of the star
c = speed of light
now if we know that speed of the star is towards us then the frequency will increase and hence the wavelength will decrease.
So it is known as Blue shift
While if the star is moving away from us then in that case the frequency will decrease and hence the wavelength will increase.
So here it is known as Red Shift.
So here correct answer will be
It is moving away from Earth.
When the moon is waning, what do we see?
A. none of the moon is visible
B. more and more of the moon
C. a full moon
D. less and less of the moon
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Hope it helps!
Answer:
D. Less and less of the moon.
Explanation:
Waning has the meaning decreasing. A waning moon is the moon that decreases in size and its illumination . Moon starts waning a day after the full moon. Its size keeps decreasing and ultimately it is not visible on the new moon day .
A day after the new moon, it starts increasing in size and brightness and is slowly visible each night, until it is completely shining on the full moon day again. This is the waxing of the moon, where its size keeps increasing.
please help me i will mark beainliest
Which would be the best element to use in a semiconductor?
Question 5 options:
lithium (Li)
chlorine (Cl) )
silicon (Si)
carbon (C)
Answers
what is the shape of the orbit of satellites
Answers
If the big body just bends the small body's path but doesn't capture it, then the small body's path is a hyperbola.
Answer:
The shape will be elliptical hopefully this helps!
Explain mass defect in terms of atomic mass number and atomic mass and explain how gamma radiation is produced.
Answers
We call this difference a nuclear binding energy. This energy is used to hold the nucleus together. According to Einstein's famous formula:
[tex]E=mc^2[/tex]
Mass and energy are the same thing, or rather, a manifestation of the same thing. They are interchangeable.
Some of the nucleus mass is used as energy to keep it together:
[tex]\Delta m=mc^2[/tex]
Gamma radiation is produced during gamma decay.
When a nucleus undergoes alpha or beta decay it can be left excited.
An excited nucleus is unstable, it has an excess energy. A nucleus that is excited emits a photon to get rid of this excess energy and we call this process gamma decay. During a gamma decay, no particles are eject from the nucleus. Gamma rays are simply photons that have very high energies.
what i the difference between a wedge and an inclined plane
Answers
Which statement accurately describes what happens when water turns to steam in terms of energy?
A.The water absorbs energy which causes chemical bonds to break, changing water to steam.
B. The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
C. The water releases energy which causes chemical bonds to break, changing water to steam.
D. The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
C. The water releases energy which causes chemical bonds to break, changing water to steam.
PLEASE HURRY!!!
Answers
Answer:
D The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
Explanation:
Good Luck ^^
The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas. The correct option is D.
What is kinetic energy?The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it.
We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.
Energy is absorbed by the water, increasing the kinetic and potential energy of the water molecules and converting them from a liquid to a gas.
Water molecules usually have the highest kinetic energy in the steam phase.
Thus, the correct option is D.
For more details regarding kinetic energy, visit:
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Brainiest for Right Person!
1. What is the force on an object due to its mass and gravity called?
A)Kilograms
B)Velocity
C)Weight
D)Pounds
2. Which of the following best describes gravitational force?
A)An attraction between two objects that have mass
B)An attraction between two objects due to their electrons
C)The force that keeps atoms and molecules bound together
D)The force that keeps objects from moving when they are at rest
3. How does distance between two objects affect their gravitational force?
A) Force increases as distance increases.
B)Force decreases as distance increases.
C)Force decreases as distance decreases.
D)Force is not related to distance.
4. Imagine you are an astronaut and you travel to a planet with a much larger mass than Earth. How would this affect your weight? Explain your answer.
Answers
C)Weight
A)An attraction between two objects that have mass
B)Force decreases as distance increases.
grav force of massive planet increases your weight
Answer:
C)Weight
A)An attraction between two objects that have mass
B)Force decreases as distance increases.
Explanation:
process where sediment and other material is moved from one place to another is called blank?
Answers
What is the periodic table of elements?
Question 5 options:a chart that organizes all the elements by their atomic number a chart that organizes all the naturally-occuring elements a chart that organizes all the elements by their atomic mass a chart that organizes all the elements created by humansAnswers
anybody wanna help me ? 10 points !!
Answers
The answer is D. 6 because, in a balanced atom, the number of protons is equal to the number of electrons.
I hope this helps :))
Hope this helps! Message me if you have any questions!
If the total number of earthquakes annually averages 14,500 approximately how many are magnitude 5 or higher? and show work.
Answers
Number x Percentage = Answer.
Therefore:
14,500x(90/100)=13,050
To find what percentage a figure represents of a total, do the following simple equation:
Figure/Total x100 = Percentage.
So for your Earthquakes, you have a total of:
Total = 90 + 20 + 5 + 1 = 116 Earthquakes.
4 to 5 -> 90/116 x100 = 78% to 2 sig. fig.
5 to 6 -> 20/116 x100 = 17%
6 to 7 -> 5/116 x100 = 4%
7+ -> 1/116 x100 = 1%
The same technique is used everywhere else, sample size divided by total multiplied by 100 gives percentage. Not multiplying by 100 gives you a ratio of 1 that it represents, 1 being 100% (a complete unit).
Therefore for part 1. of your question I would just do 14,500x0.9=13,050.
You'll probably see that 90/100 = 0.9 since 90% is identical to writing 90/100 or 0.9.
PLEASE HELP ME ANSWER THIS!
Which direction will the molecules pass through the cell membrane?
a. From bottom to top
b. From left to right
c. From right to left
d. From top to bottom
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and molecules will move from left to right.
How much force is needed to stop an 80-kg football player if he decelerates at 5 m/s2? 5 N 16 N 20 N 400 N
Answers
Answer:
The force needed is 400 Newtons.
Explanation:
The force can be determined by means of Newton's law.
[tex]F = m \cdot a[/tex] (1)
Where F is the force needed to stop the football player, m is the mass of the football player and a is the acceleration.
[tex]F = (80 kg)\cdot (5m/s^{2})[/tex]
[tex]F = 400 kg.m/s^{2}[/tex]
However, 1N = 1 kg.m/s^{2}
[tex]F = 400 N[/tex]
Hence, the force needed is 400 Newtons.
please do the Venn diagram
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A mixture on the other hand is physically combined at variable proportions. The components retain their properties. But like compounds, they also are made up of elements and they can have more than 2 components.
Attached is a Venn Diagram that shows their differences and similarities.
The Sierra Nevadas are an example of a fault-block mountain range. Based on this information, which of the following processes formed the Sierra Nevadas?
Answers
A fault block mountain range is formed by tension as rocks are pulled away from each other. A fault block is a section of rock bounded on at least two sides by faults.
Faults commonly break the crust into large, fault bounded blocks. If normal faults down drop one fault block relative to other blocks on either side, the resulting feature is called a Graben.
A block that is uplifted relative to blocks in either side is called a horst.
Answer:
Explanation:
The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones (areas with similar plant and animal communities).
An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of _____ amu. (Enter a whole number.)
Answers
7+6=13
Why was the Constitution written, according to the Preamble? A. to create a more perfect Union B. to end slavery C. to break free from Britain D. to give women the vote
Answers
The answer is option A "to create a more perfect Union".
Reason:
The constitution was created in order to form a better Union. Its not option B because the constitution is the very first step to forming the better country slavery wasn't abolished then Its also not option C because we broke free of Britain using "taxation without representation" which helps the colonists break free from Britain. Its also not option D because the country was already before women gained there rights.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
What best describes the degree to which a material can transmit heat
- melting point
- boiling point
- thermal conductivity
- electrical conductivity
Answers
The correct answer is C. Thermal conductivity
Explanation:
Conduction occurs as heat, electricity, etc. are transmitted from one body to another. In the case of thermal conductivity, this refers to the property of one material or body to transmit or conduct heat. This property is measured in Watts (energy) per meter(distance)-Kelvin (temperature). For example, the thermal conductivity of copper is around 385 while the one of ice is 1.6, which indicates copper has a higher capability to conduct heat. Thus, the degree to which a material can transmit heat is thermal conductivity.
a gamma ray is a high energy, high frequency electromagnetic wave that travels at the speed light 3.0 x 10^8 m/s calculate the wavelength of the wave if it's frequency is 10^20hz
Answers
Wavelength = (speed) / (frequency)
= (3 x 10⁸ m/s) / (10²⁰ /s)
= 3 x 10⁻¹² meters
That's 3 "nano-millimeters" ... about 0.06 of
the diameter of a single Hydrogen atom ! ! !
Suppose Eratosthenes’ results for Earth’s circumference were quite accurate. If the diameter of Earth is 12,740 km, what is the length of his stadium in kilometers?
Answers
Answer:
Length of one stadium = 0.1556 km
Explanation:
We have the diameter of Earth = 12740 km
Thus, circumference (C) of Earth is
[tex]=2\pi \frac{Diameter}{2} \\[/tex]
[tex]=2\times \pi \times \frac{12740}{2}[/tex]
C = 40023.89 km
Eratosthenes was a Greek polymath. He was the first to calculate the circumference of Earth. He had observed that at local noon on day of Summer Solstice, when Sun is overhead for the locations on Tropic of Cancer, a place named Syene had zero shadow day. Also on the same day the objects in Alexandria casts shadow. This proved that Earth is spherical and not flat. He went further and calculated the Sun angle ([tex]\theta[/tex]) for Alexandria by using a Rod (Gnomon). He found the angle to be about 7°. He also knew the distance (D) between Alexandria and Syene which was 5000 Stadia.
Lets say length of one stadia = S km
He used this data and simple concept of geometry as given below:
[tex]\frac{\theta }{360}=\frac{D}{C}[/tex]
[tex]=\frac{7}{360}=\frac{5000 \times S}{40023.89}[/tex]
[tex]=5000 \times S = \frac{7\times 40023.89}{360}[/tex]
[tex]=S = \frac{7\times 40023.89}{360\times5000}[/tex]
S = 0.1556 km
From which sphere does most water evaporate?
A. Lithosphere
B. Hydrosphere
C. Biosphere
D. Atmosphere
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A car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 15 seconds.
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give an example of fluid friction
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Also, the drag of air on an airplane. I hope this helps.
Sliding Friction
Rolling Friction
Fluid Friction
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Which statement accurately describes what happens when water turns to steam in terms of energy?
A.
The water absorbs energy which causes chemical bonds to break, changing water to steam.
B.The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
C.The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
D.The water releases energy which causes chemical bonds to break, changing water to steam.
Answers
Final answer:
Water turns to steam by absorbing energy that increases the kinetic and potential energy of water molecules, allowing them to escape into the air as gas. So the correct option is C.
Explanation:
When water turns to steam, it absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas. During the process of boiling, heat energy increases the water molecules' kinetic energy, leading to the breaking of hydrogen bonds that held water molecules close together. When these bonds break, water molecules can move freely and escape into the air as steam or water vapor. This endothermic transition requires a significant amount of energy due to water's high heat of vaporization.
The correct statement describing this change of state is thus:
C.The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
PLEASE HELP ME!
C. What organelle is missing from E. coli?
Answers
Answer:
The organelle missing from E.coli is nuclear membrane.
Explanation:
A nuclear membrane is a double membrane that surrounds and protects the nucleus of a cell. The nuclear membrane is lacking because there is no need for one to protect a nucleus that does not exist. Bacteria cells are also prokaryotes, and all prokaryotes lack a nucleus.
For more information, Please refer to the link:
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Calculate the acceleration of a car that begins at rest at a stop light and accelerates to a speed of 20m/s in a 10 sec time period. Be sure to include the acceleration formula and the final units.
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Magnet A and B are of equal magnetic strength and which position will magnets A&B have the greatest attraction for toward each other
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(sorry the picture got cut off)